/**
 * The MIT License (MIT)
 * Copyright (c) 2016 Dreamlu (596392912@qq.com).
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package com.graduate.common.shiro;

import java.util.Collection;
import java.util.Iterator;

import org.apache.shiro.cache.Cache;
import org.apache.shiro.cache.CacheException;
import org.apache.shiro.cache.CacheManager;
import org.apache.shiro.util.Destroyable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 使用spring-cache作为shiro缓存
 * 缓存管理器
 * @author L.cm
 *
 */
public class ShiroSpringCacheManager implements CacheManager, Destroyable {
	private static final Logger logger = LoggerFactory.getLogger(ShiroSpringCacheManager.class);
	private org.springframework.cache.CacheManager cacheManager;
	
	public org.springframework.cache.CacheManager getCacheManager() {
		return cacheManager;
	}

	public void setCacheManager(org.springframework.cache.CacheManager cacheManager) {
		this.cacheManager = cacheManager;
	}

	public <K, V> Cache<K, V> getCache(String name) throws CacheException {
		logger.info("Acquiring ShiroSpringCache instance named [" + name + "]");
		Collection<String> names = cacheManager.getCacheNames();
		Iterator<String> it = names.iterator();
		while(it.hasNext()){
			logger.info("缓存 -> "+it.next());
		}
		org.springframework.cache.Cache cache = cacheManager.getCache(name);
		logger.info("获取到缓存 --> "+cache);
		return new ShiroSpringCache<K, V>(cache);
	}

	public void destroy() throws Exception {
		cacheManager = null;
	}

}
